/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hadoop.hdfs.util;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.util.ReflectionUtils;

/**
 * Class that helps validate paths using the class specified by dfs.util
 * .pathname.checker.class in the configuration
 */
public class PathValidator {

  private PathNameChecker nameChecker;

  public PathNameChecker getNameChecker() {
    return nameChecker;
  }

  public PathValidator(Configuration configuration) {
    Class<? extends PathNameChecker> nameCheckerClass = configuration.getClass(
      "dfs.util.pathname.checker.class",
      DefaultPathNameChecker.class, PathNameChecker.class);
    nameChecker = (PathNameChecker) ReflectionUtils.newInstance
      (nameCheckerClass, configuration);
  }

  public boolean isValidName(String src) {

      return nameChecker.isValidPath(src);
  }
  
  public boolean isValidName(String src, String[] names) {
    return nameChecker.isValidPath(src, names);
  }

}